This application is a basic tool for teaching algebra.Trying to solve a system of linear equations with two equations and two...
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This application is a basic tool for teaching algebra.Trying to solve a system of linear equations with two equations and two unknown variables. (Two purchases)It contains:. A button that generates new questions (״two new purchases of fruits״).. Two drop-downs to select a solution and a button to verify: The verification button checks the solution, and adds it to the list of the session.You can edit the statements. The program checks if the determinant of the proposed statement is nonzero.. The 5 tools to help resolve the problem:* Tool 1: Gauss-Jordan elimination:The two equations are represented as two purchases of fruits.Contains tools to add one column to another, multiply, divide and change the sign for to get to have one apple on a side and and an orange at the other.The result of the two additions are the values of apple and orange.* Tool 2: Graphic:Contains a graphic frame and 2 drop-downs to find the solution, using the method essay / error.The problem posed is a linear system of equations, so the results must be ever into two lines that intersect.To get the answer, one should find this point.You can also click directly on the chart.The graph is divided by the diagonal.Below the diagonal, apple values are entered, for to get the values of the orange.Above the diagonal, one enters the price of the orange.The meeting point of the two lines is represented by a yellow dot.* Tool 3: Two weighing scales:Shows two weighing balances. On the left, due to its drop-down, which determines the value proposed for apples: results gives the price of oranges in terms of the two equations.The right hand scale gives the results from the proposed price for oranges.When a scale is balanced, gives the results of both the price of the apples and oranges.* Tool 4: Cramer's Rule:This tool solves the problem at once.Contrary to what happens in other tools, here we have to manually enter the data of the problem. The two equations (two purchases) are represented in horizontal rows.If you have not entered data, the tool warns that you can not solve the problem.It can also warn when the determinant is zero:The determinant is zero when the two lines that we saw in the graphical tool, are not crossing. This happens when they are parallel. And the lines are parallel when a purchase (equation) is linear function of the other. (eg 1 A + 2 O =n1 and 2 A + 4 O = n2)The program automatically never generates such problems.* Tool 5: Inverse matrix:The tool represents the terms of the equation automatically and in landscape format (each purchase is a row)The resolution tool there are the terms of the two equations on the left and the identity matrix at right.The objective is to calculate the inverse matrix.This is achieved by operating the rows, until the data from the equations (on the left) become the identity matrix.At this time to the right we have the inverse matrix.The multiplication of the results vector by the inverse matrix gives the solution.This app costs $1.25

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This is a free, online textbook that can be downloaded in its entirety as a pdf. ISBN: 978-87-7681-626-1. According to the...
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This is a free, online textbook that can be downloaded in its entirety as a pdf. ISBN: 978-87-7681-626-1. According to the website, "Mathematics is an exceptionally useful subject, having numerous applications in business, computing, engineering and medicine to name but a few. `Applied mathematics’ refers to the study of the physical world using mathematics. This book approaches the subject from an oft-neglected historical perspective. A particular aim is to make accessible to students Newton’s vision of a single system of law governing the falling of an apple and the orbital motion of the moon. The book and its associated volume of practice problems give an excellent introduction to applied mathematics, found at - " target=״_blank״http://www.merlot.org/merlot/viewMaterial.htm?id=485391

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This is a free, online textbook that can be downloaded as a pdf. ISBN: 978-87-7681-624-7 - According to the website,...
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This is a free, online textbook that can be downloaded as a pdf. ISBN: 978-87-7681-624-7 - According to the website, "Mathematics is an exceptionally useful subject, having numerous applications in business, computing, engineering and medicine to name but a few. `Applied mathematics’ refers to the study of the physical world using mathematics. This book approaches the subject from an oft-neglected historical perspective. A particular aim is to make accessible to students Newton’s vision of a single system of law governing the falling of an apple and the orbital motion of the moon. The book and its associated volume of practice problems give an excellent introduction to applied mathematics.״

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At this site it gives examples of how engineers have a hand in designing, creating, or modifying nearly everything we touch,...
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At this site it gives examples of how engineers have a hand in designing, creating, or modifying nearly everything we touch, wear, eat, see, and hear in our daily lives. It not only gives information to students but also to educators. It contains materials from science, technology, engineering, and mathematics. It is maintained on a regular basis and is easy to navigate threw.

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In this book, the entire study consisted of basically five phases. In the present investigation, the definition of...
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In this book, the entire study consisted of basically five phases. In the present investigation, the definition of standardization has been adopted as given by Roger T. Lennon i.e. here standardization means to determine validity, reliability and norms of the test. The definition is also mentioned in "Measurement in Physical Education" by Donald K. Mathews (1978) The five phases are as follows: Phase I: Planning and preparation of a test set of 50 questions from Trigonometry for class IX. Phase II: Percentage of agreeability or content-cum-face validity with the help of subject experts and field experts. Phase III: Group try out for Item analysis. Phase IV: The final try-out to obtain reliability Phase V: Developing norms for the test. The above design of the study is also supported by Lee J. Cronbach (1984).

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The electronic Journals Delivery Service (eJDS) Programme is geared to facilitate free access to current scientific...
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The electronic Journals Delivery Service (eJDS) Programme is geared to facilitate free access to current scientific literature. The goal is to distribute individual scientific articles via email to scientists in institutions in Third World countries that do not have access to sufficient bandwidth to download material from the Internet in a timely manner and/or cannot afford the connection. For more information about eJDS see:http://www.ejds.org/.

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Quoted from the site: EqWorld presents extensive information on solutions to various classes of ordinary differential,...
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Quoted from the site: EqWorld presents extensive information on solutions to various classes of ordinary differential, partial differential, integral, functional, and other mathematical equations. It also outlines some methods for solving equations, includes interesting articles, gives links to mathematical websites, lists useful handbooks and monographs, and refers to scientific publishers, journals, etc. This site will be kept up to date to include new equations with solutions and other useful information.

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This lesson assumes a background understanding of the basic parameters for an exponential function and gives students an...
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This lesson assumes a background understanding of the basic parameters for an exponential function and gives students an opportunity to discover how exponential growth affects monetary stature. This gives students an opportunity to get comfortable with computations utilizing the exponential growth equation by integrating a popular culture cartoon to spark interest.

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